Boeland wrote in news:4921bc34$0$14489$5fc30a8
@news.tiscali.it:

Can a vacuum release be added to let the air in the bowl?



I don't understand this vacuum problem. Just pull on the cover and it
bends to leak air into the bowl. It's no problem at all on the one I used.
It's not like it's sucked flat and noone can open it. There's a hissing
sound when you pull on it and the vacuum is released. The idea of LEAVING
IT SEALED is WELL worth any trouble opening it......THERE's NO SMELL AT ALL
IF ITS SEALED SHUT!

There's also no "seawater smell" wafting up when water is left in it, even
shut with no vacuum on it....that's great, too!